Blood Gem is an active item in Reverie: Make Good Omissions, a mod for The Binding of Isaac.
Grants a chance to spawn rewards for the cost of half a red heart (or a full heart starting from The Womb).
• 10% chance to spawn a random pill.
• 15% chance to spawn a random card or rune.
If no rewards are spawned after using it 3 times in a row, the next use is guaranteed to spawn a reward.
Blood Gem can be found in the following item pools:
| Name | Weight |
|---|---|
| Devil Room |
0.5/1.0
|
| Ultra Secret Room |
1.0/1.0
|
| Red Chest |
1.0/1.0
|
| Shop |
1.0/1.0
|
| Demon Beggar |
1.0/1.0
|
| Greed Shop |
1.0/1.0
|
| Greed Devil Room |
0.5/1.0
|
The following tags are applied to this item:
| Id | Description |
|---|---|
| nolostbr | Unavailable for The Lost after obtaining Birthright. |
The following special synergies and interactions for Blood Gem have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Car Battery | No effect. |
| --- | Book of Virtues | Spawns blood red wisps in the inner ring.
The wisps have high HP. |
| --- | The Book of Belial combined with Judas' Birthright | Spawns different rewards instead:
• 20% chance to spawn a Black Heart.
• 10% chance to spawn a random pill. • 10% chance to spawn a random card or rune. • 10% chance to spawn a Blue Spider. But no pity mechanic. |
| Reverie: Make Good Omissions | Tainted Flandre |
Spawn rewards with a probability reduced to one-fifth of the original.
Pity mechanic changed to: if no rewards are spawned after using it 19 times in a row, the next use is guaranteed to spawn a reward. |
| Reverie | Lost Memory | Character: Flandre Scarlet |
* Note that not all possible synergies and interactions are listed here.